Nov 30 17:32:09.932 INFO checking r4-1.0.1 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 17:32:09.932 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +a49316ddc99d9d595193557fc899f6c52e4d9af9-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 17:32:10.149 INFO [stdout] 7bf919fcdc129979d85b693e282809dfbe8476fcce2728bc7fac0784b06d9b08
Nov 30 17:32:10.154 INFO running `"docker" "start" "-a" "7bf919fcdc129979d85b693e282809dfbe8476fcce2728bc7fac0784b06d9b08"`
Nov 30 17:32:10.705 INFO [stderr] usermod: no changes
Nov 30 17:32:10.746 INFO [stderr]     Checking r4 v1.0.1 (/source)
Nov 30 17:32:11.375 INFO [stderr] warning: unused variable: `i`
Nov 30 17:32:11.375 INFO [stderr]    --> src/lib.rs:407:34
Nov 30 17:32:11.375 INFO [stderr]     |
Nov 30 17:32:11.375 INFO [stderr] 407 |                     iterate![for i in 0..4;
Nov 30 17:32:11.375 INFO [stderr]     |                                  ^ help: consider using `_i` instead
Nov 30 17:32:11.375 INFO [stderr]     |
Nov 30 17:32:11.375 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 30 17:32:11.375 INFO [stderr] 
Nov 30 17:32:11.375 INFO [stderr] warning: unused variable: `x`
Nov 30 17:32:11.375 INFO [stderr]    --> src/lib.rs:433:34
Nov 30 17:32:11.375 INFO [stderr]     |
Nov 30 17:32:11.375 INFO [stderr] 433 |                     iterate![for x in vs.iter();
Nov 30 17:32:11.375 INFO [stderr]     |                                  ^ help: consider using `_x` instead
Nov 30 17:32:11.375 INFO [stderr] 
Nov 30 17:32:11.375 INFO [stderr] warning: unused variable: `x`
Nov 30 17:32:11.375 INFO [stderr]    --> src/lib.rs:443:34
Nov 30 17:32:11.375 INFO [stderr]     |
Nov 30 17:32:11.375 INFO [stderr] 443 |                     iterate![for x in vs.iter();
Nov 30 17:32:11.375 INFO [stderr]     |                                  ^ help: consider using `_x` instead
Nov 30 17:32:11.375 INFO [stderr] 
Nov 30 17:32:11.375 INFO [stderr] warning: unused variable: `a`
Nov 30 17:32:11.375 INFO [stderr]    --> src/lib.rs:474:34
Nov 30 17:32:11.375 INFO [stderr]     |
Nov 30 17:32:11.375 INFO [stderr] 474 |                              let a = *x + 3;
Nov 30 17:32:11.375 INFO [stderr]     |                                  ^ help: consider using `_a` instead
Nov 30 17:32:11.375 INFO [stderr] 
Nov 30 17:32:11.375 INFO [stderr] warning: unused variable: `a`
Nov 30 17:32:11.375 INFO [stderr]    --> src/lib.rs:489:34
Nov 30 17:32:11.375 INFO [stderr]     |
Nov 30 17:32:11.375 INFO [stderr] 489 |                              let a = *x + 3;
Nov 30 17:32:11.375 INFO [stderr]     |                                  ^ help: consider using `_a` instead
Nov 30 17:32:11.375 INFO [stderr] 
Nov 30 17:32:11.376 INFO [stderr] warning: unused variable: `y`
Nov 30 17:32:11.376 INFO [stderr]    --> src/lib.rs:506:34
Nov 30 17:32:11.376 INFO [stderr]     |
Nov 30 17:32:11.376 INFO [stderr] 506 |                              for y in vs.iter();
Nov 30 17:32:11.376 INFO [stderr]     |                                  ^ help: consider using `_y` instead
Nov 30 17:32:11.376 INFO [stderr] 
Nov 30 17:32:11.376 INFO [stderr] warning: unused variable: `x`
Nov 30 17:32:11.376 INFO [stderr]    --> src/lib.rs:522:34
Nov 30 17:32:11.376 INFO [stderr]     |
Nov 30 17:32:11.376 INFO [stderr] 522 |                              let x = *x + 1;
Nov 30 17:32:11.376 INFO [stderr]     |                                  ^ help: consider using `_x` instead
Nov 30 17:32:11.376 INFO [stderr] 
Nov 30 17:32:11.453 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
Nov 30 17:32:11.467 INFO [stderr] su: No module specific data is present
Nov 30 17:32:12.299 INFO running `"docker" "inspect" "7bf919fcdc129979d85b693e282809dfbe8476fcce2728bc7fac0784b06d9b08"`
Nov 30 17:32:12.456 INFO running `"docker" "rm" "-f" "7bf919fcdc129979d85b693e282809dfbe8476fcce2728bc7fac0784b06d9b08"`
Nov 30 17:32:12.685 INFO [stdout] 7bf919fcdc129979d85b693e282809dfbe8476fcce2728bc7fac0784b06d9b08